Here is a list of my Ph.D. students, 13 in all.

- John Steel,
*Determinateness and Subsystems of Analysis*, Berkeley, 1977.(Steel is a tenured full professor at UCLA.)

[ Although Steel's official thesis adviser was Professor John Addison of Berkeley, the following is a quotation from the acknowledgements page of Steel's thesis. ``I owe a great debt to Stephen Simpson, who guided me expertly in the perilous transition from study to research. The results of Chapters 1 and 2, together with less tangible aspects of my research, are a product of Simpson's influence.'' The thesis consists of three chapters. ]

- Rick L Smith,
*Theory of Profinite Groups with Effective Presentations*, Pennsylvania State University, 1979.(Smith is a tenured associate professor at the University of Florida.)

- Galen Weitkamp,
*Kleene Recursion over the Continuum*, Pennsylvania State University, 1980.(Weitkamp is a tenured professor at the Western Illinois University.)

- Peter Pappas,
*The Model Theoretic Structure of Group Rings*, Pennsylvania State University, 1982.(Pappas is a professor at Vassar College.)

- Stephen H Brackin,
*On Ramsey-type Theorems and their Provability in Weak Formal Systems*, Pennsylvania State University, 1984.(Brackin is a mathematician at Odyssey Research Associates.)

- Mark Stephen Legrand,
*Coanalytic Sets in the Absence of Analytic Determinacy*, Pennsylvania State University, 1985.(Legrand is an assistant professor at Auburn University.)

- Douglas K Brown,
*Functional Analysis in Weak Subsystems of Second Order Arithmetic*, Pennsylvania State University, 1987.(Brown is an associate professor at the Altoona Campus of Penn State.)

- Jeffry L Hirst,
*Combinatorics in Subsystems of Second Order Arithmetic*, Pennsylvania State University, 1987.(Hirst is an associate professor at Appalachian State University in North Carolina.)

- Xiaokang Yu,
*Measure Theory in Weak Subsystems of Second Order Arithmetic*, Pennsylvania State University, 1987.(Miss Yu is an associate professor at the Altoona Campus of Penn State.)

- Fernando Ferreira,
*Polynomial Time Computable Arithmetic and Conservative Extensions*, Pennsylvania State University, l988.(Ferreira is a professor at the University of Lisbon.)

- Kostas Hatzikiriakou,
*Commutative Algebra in Subsystems of Second Order Arithmetic*, Pennsylvania State University, l989.(Hatzikiriakou is a professor at the University of Crete.)

- Alberto Marcone,
*Foundations of BQO Theory and Subsystems of Second Order Arithmetic*, Pennsylvania State University, 1992.(Marcone is a professor at the University of Torino.)

- A James Humphreys,
*On the Necessary Use of Strong Set Existence Axioms in Analysis and Functional Analysis*, Pennsylvania State University, 1996.(Humphreys is an instructor at Penn State.)

Sun Apr 19 19:59:54 EDT 1998